I took a chance and purchased a Vivid 2 on ebay with the reflectors. A single unit is hanging over a 120P setup peninsula style. The light has exceeded expectations - the color rendition is much better than the Atledtis lights it replaced. The near-infinite adjustments to spectrum/intensity makes it easier to start with lower light until your plants grow in, then dial it up or to change the colors rendition based on preferences. I rented a PAR meter and I'm getting 100-130 range at the substrate with the intensity set at 50% and the light about 25 inches from the substrate.
A few gripes: I wish the fan had a temperature sensor and only came on when needed. It's not very loud but with the room quiet, it is noticeable and at 50%, the heat fins are not even warm. The app seems to be a work in progress. They released a wizard recently so you can setup a ramp profile and then tweak it. It still needs work but I don't imagine I'll be messing with it much. Finally, as others have noted, buying off ebay or without a local distributor = you are out of luck if something goes wrong.